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从rRNA基因序列探讨云斑蛛属Cyrtophora的系统发生地位
引用本文:李平,潘红春.从rRNA基因序列探讨云斑蛛属Cyrtophora的系统发生地位[J].蛛形学报,2012,21(1):22-26.
作者姓名:李平  潘红春
作者单位:安徽师范大学生命科学学院,重要生物资源保护与利用研究安徽省重点实验室,生物环境与生态安全安徽省高校省级重点实验室,芜湖241000
基金项目:安徽师范大学生物大分子进化重点实验室开放基金(2006A002)及安徽省重点学科联合基金资助项目
摘    要:由于云斑蛛属Cyrtophora蜘蛛所织的网形态上较为特殊,所以该属分类地位长期以来有异议.为从分子水平探讨该属系统发生地位,本文对相关的11种蜘蛛线粒体12S rRNA基因和核18S rRNA基因部分序列进行了测定.基于12S rRNA和18S rRNA基因序列联合数据进行的分子系统发生分析结果表明云斑蛛属属于园蛛科,该结果提示在园蛛总科分类实践中以蛛网形态特征为分类依据时要慎重考虑其可靠性.

关 键 词:云斑蛛属  园蛛总科  圆网  rRNA基因  分子系统学

Phylogenetic Placement of The Spider Genus Cyrtophora Inferred from rRNA Gene Sequences
LI Ping , PAN HONG-Chun.Phylogenetic Placement of The Spider Genus Cyrtophora Inferred from rRNA Gene Sequences[J].Acta Arachnologica Sinica,2012,21(1):22-26.
Authors:LI Ping  PAN HONG-Chun
Institution:LI Ping and PAN HONG-Chun Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources & Provincial Key Laboratory of Biotic Environment and Ecological Safety in Anhui, College of Life Sciences, Anhui Normal University, Wuhu 241000, P. R. China
Abstract:The spiders of genus Cyrtophora weave a kind of unique web, therefore the taxonomic status of the genus has been doubtful. In the present study, mitochondrial 12S and nuclear 18S rRNA gene fragments of eleven species of spiders were amplified and sequenced, and the phylogenetic placement of genus Cyrtophora was inferred from the combined DNA sequences of 12S rRNAand 18S rRNA gene fragments. The resulting phylogeny indicated that genus Cyrtophora belonged to Family Araneidae. In addition, the result hints that the morphological features of spider web should be gingerly used for the taxonomic research of Araneoidea.
Keywords:genus Cyrtophora  Orb-web  Araneoidea  rDNA  molecular phylogeny  
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